Our Data Sources
21, Onslow Gardens, Ongar has 31 entries in the Land Registry, most recently in September 2023 and a single entry in the EPC database dated September 2021.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 21, Onslow Gardens, Ongar, we estimate a market value of £610,827 and a rental value of £2,485 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £541,019 and £2,201 per month respectively.
Plot Size
HM Land Registry records the plot of land for 21, Onslow Gardens, Ongar as measuring 291 m2.
That makes it the 18th largest plot in the postcode, where all 36 other houses have recorded plot data.
Energy Efficiency
21, Onslow Gardens, Ongar has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 07 Sep 2021.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
The most recent sale of 21, Onslow Gardens, Ongar completed on 14th September 2023 at £550,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold 3 times.
Values of comparable properties have risen by 6.6% over the period since September 2023.
- Sold Sep 2023£550,000
- Sold Aug 2007£319,000
- Sold Jan 1996£100,000
Similar Properties Sold Nearby
Since 2013 154 properties similar to 21, Onslow Gardens, Ongar have sold within a radius of 1.0 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 15th December 2025, was 9, Mayflower Way, Ongar, CM5 9AZ, a freehold house which sold for £665,000.
Read more about house prices in CM5.
- Sold Dec 2025£665,000 | 4 Bed House9, Mayflower Way, Ongar, CM5 9AZ9, Mayflower Way, Ongar, CM5 9AZ
- Sold Aug 2025£545,000 | 4 Bed House9, Bowes Drive, Ongar, CM5 9AU9, Bowes Drive, Ongar, CM5 9AU
- Sold Jul 2025£585,000 | 3 Bed House47, Onslow Gardens, Ongar, CM5 9BQ47, Onslow Gardens, Ongar, CM5 9BQ
- Sold May 2025£540,000 | 4 Bed House89, Mayflower Way, Ongar, CM5 9BB89, Mayflower Way, Ongar, CM5 9BB
- Sold Mar 2025£620,000 | 3 Bed House51, Mayflower Way, Ongar, CM5 9BA51, Mayflower Way, Ongar, CM5 9BA
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £536,386, ranging from £486,108 to £610,830.
- 19 Onslow Gardens
4 Bed House | 14 m | Est. Value: £610,830
- 17 Onslow Gardens
3 Bed House | 21 m | Est. Value: £500,135
- 27 Onslow Gardens
3 Bed House | 21 m | Est. Value: £508,376
- 29 Onslow Gardens
3 Bed House | 32 m | Est. Value: £521,837
- 28 Onslow Gardens
4 Bed House | 33 m | Est. Value: £579,257
Location Comparison
Of the 59 addresses on Onslow Gardens, Ongar, CM5, 21, Onslow Gardens, Ongar comes out as the 19th largest and the 19th most expensive in our analysis of the public data.
It is also £5k more expensive than the average property across the CM5 district.
More reading links
Schools Nearby
- Ongar Primary School900 m away
- High Ongar Primary School1.0 km away
- Chipping Ongar Primary School1.4 km away
- The Ongar Academy900 m away
- Shenfield High School9.7 km away
- Becket Keys Church of England Free School9.9 km away
More reading links
Public Transport Nearby
- Epping|9.4 km away
- Shenfield|10.4 km away
- Ingatestone|10.5 km away
Available Internet Speeds
Broadband here reaches ultrafast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












